CODEWITHSUNDEEP
androidandroid-viewpager
user1634451
user1634451

Reputation: 5212

Replacing a fragment in a view pager

I am trying find a solution simular this https://stackoverflow.com/a/13925130/1634451 but the poster didn't explain what R.id.products_list_linear is. I tried to set R.id.products_list_linear as the id of my linearlayout for the fragment i am trying to replace. But that just overlays the 2 fragments on top of each other. I am pretty sure that i need to get the id of the container in the viewpager but i don't know how to get this id.

Edit: To clarify i am trying to replace a fragment in a view pager with another my code looks almost exactly like the answer I posted but when I make R.id.products_list_linear the I'd of the fragment I am trying to replace layout. The fragment I am replacing just gets overlaid on the one I am trying to replace

Upvotes: 1

Views: 1916

Answers (2)

Sino Raj
Sino Raj

Reputation: 6441

Replace Fragments Within a View Pager

Try this customized ViewPager Adapter,..

import java.util.List;

import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentManager;
import android.support.v4.app.FragmentStatePagerAdapter;
import android.view.ViewGroup;

public class ViewPagerAdapter extends FragmentStatePagerAdapter {
    private List<Fragment> fragments=null;
private FragmentManager fragmentManager=null;

public ViewPagerAdapter(FragmentManager fragmentManager,List<Fragment> fragments) {
    super(fragmentManager);
    this.fragments=fragments;
    this.fragmentManager=fragmentManager;
}
@Override
public Fragment getItem(int position) {
    return fragments.get(position);
}
@Override
public int getCount() {
    return fragments.size();
}
@Override
public void setPrimaryItem(ViewGroup container, int position, Object object)
{
    super.setPrimaryItem(container,0,object);
}
@Override
public void notifyDataSetChanged()
{
    super.notifyDataSetChanged();
}
@Override
public void destroyItem(ViewGroup collection, int position, Object view) {
    fragmentManager.executePendingTransactions();
    fragmentManager.saveFragmentInstanceState(fragments.get(position));
}
public void replaceItem(int position,Fragment fragment)
{
    fragments.set(position, fragment);
    this.notifyDataSetChanged();
}
}

call it from activity with fragment as arguments,

List<Fragment> fragments = new Vector<Fragment>();
fragments.add(Fragment.instantiate(this, Fragment1.class.getName()));
fragments.add(Fragment.instantiate(this, Fragment2.class.getName()));
fragments.add(Fragment.instantiate(this, Fragment3.class.getName()));
fragments.add(Fragment.instantiate(this, Fragment4.class.getName()));
fragments.add(Fragment.instantiate(this, Fragment5.class.getName()));
mPagerAdapter=new ViewPagerAdapter(getFragmentManager(), fragments);

When you replace view/fragment inside of viewPager then use,

mPagerAdapter.replaceItem(2,Fragment.instantiate(this, Fragment5.class.getName()));

Upvotes: 2

user1634451
user1634451

Reputation: 5212

I ended up going with a different approach that worked out nicely for me. I used a ViewSwitcher for the fragment in the viewpager.

Upvotes: 0

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